Comments on total photon-absorption cross-section measurements at 52.4, 60, 72.2, and 84.4 keV in Al, Fe, Mo, Ag, W, and Pt: Photoelectric cross sections deduced

It is pointed out that with the sources and detector used in the above measurements, the values of 53.5 and 74.5 keV instead of 52.4 and 72.2 keV should have been used for the $K$ conversion x rays. The authors' claim of agreement with theory and other existing data within the quoted experimental errors is not correct when this slight change in energy is taken into proper account.